最迷惑人的20幅图画 Optical Illusions - the top 20

Named after Wilhelm von Bezold, the German professor of meteorology (1837-1907), who discovered that a colour may appear different depending upon its relation to adjacent colours. In this case, the Bezold Effectis such that the red seems lighter when combined with the white and darker when combined with the black.

两边的红色其实是一样深的。